Fingerprint Door Lock Using Arduino

Introductionthe fingerprint door lock as the name suggests is an electronic door lock that can be installed on almost any access point in your house.

Fingerprint door lock using arduino. Therefore there is one master arduino which controls the servo oled and fingerprint sensor while a slave arduino controls the leds. After installing the apk and connecting the hardware as per the circuit diagram connect the arduino to the laptop and upload the code remove the tx rx pins before uploading the code. I am using fingerprint module r307 and lcd together. Testing the fingerprint door lock using arduino project.

It uses a keypad and fingerprint scanner to grant a user access by controlling an electric door s. How to make fingerprint door lock at home from this tutorial you can make awesome fingerprint sensored locking system for your door. Not only to ensure door security this project also make certain to assist in fields like forensics crime investigation personal identification attendance system and there is a lot more. Make sure you get a fingerprint sensor that works with the arduino through the serial communication.

Conclusion in this tutorial post we learned how to set up a fingerprint sensor and how to use it with our arduino you can use this knowledge to control a. First of all connect the fingerprint sensor to the arduino uno. You need adafruit finge. The default pins for serial communication on the arduino uno are pin 0 rxd and pin 1 txd of the board but we are going to use other pins for serial communication.

Arduino fingerprint sensor door lock. You can add a solenoid instead of this led and make a fingerprint door lock which could be a brief tutorial for the future but for this tutorial led indication is our eureka. December 11 2018 alexa f. Using pwm the master can send different voltages to the slave.

In that i am using 2 3 digital pins of arduino for data transfer to the fingerprint i tried other pin configurations for this but it didn t work but as i am connecting lcd it also requires same 2 3 digital pins of arduino and it is not possible for me to use 2 and 3 pins of arduino for both lcd and fingerprint sensor for data transfer. They are connected through a single wire that goes from a pwm pulse width modulation enabled pin on the master to an analog pin on the slave.